protected virtual SqlString GenerateSnapshotSelectString()
{
//TODO: should we use SELECT .. FOR UPDATE?
SqlSelectBuilder select = new SqlSelectBuilder(Factory);
//if (Factory.Settings.IsCommentsEnabled)
//{
// select.SetComment("get current state " + ClassName);
//}
string[] aliasedIdColumns = StringHelper.Qualify(RootAlias, IdentifierColumnNames);
string selectClause = StringHelper.Join(", ", aliasedIdColumns) +
ConcretePropertySelectFragment(RootAlias, PropertyUpdateability);
SqlString fromClause = new SqlString(FromTableFragment(RootAlias)) +
FromJoinFragment(RootAlias, true, false);
SqlString joiner = new SqlString("=", Parameter.Placeholder, " and ");
SqlString whereClause = new SqlStringBuilder()
.Add(StringHelper.Join(joiner, aliasedIdColumns))
.Add("=")
.AddParameter()
.Add(WhereJoinFragment(RootAlias, true, false))
.ToSqlString();
// TODO H3: this is commented out in H3.2
if (IsVersioned)
{
whereClause.Append(" and ")
.Append(VersionColumnName)
.Append("=?");
}
return select.SetSelectClause(selectClause)
.SetFromClause(fromClause)
.SetOuterJoins(SqlString.Empty, SqlString.Empty)
.SetWhereClause(whereClause)
.ToSqlString();
}
